Subjective Type

Describe how the following changes are brought about: Pig iron into steel.

Solution

Pig iron is converted into steel by heating in a converter. A blast of oxygen diluted with carbon dioxide is blown through the converter. Oxygen reacts with impurities and raises the temperature to $$2173\ K$$. Carbon gets oxidised to $$CO$$ which burns off at the mouth of the converter. Oxides of silicon and $$Mg$$ from slag. When the flame is stopped, slag is tapped off and other metal like $$Mn, Cr, Ni, W$$ may be added in the end.

SIMILAR QUESTIONS

Metallurgy

The form of iron obtained from blast furnace is:

Metallurgy

Identify the correct statement from the following :

Metallurgy

The main difference between cast iron and pig iron is that:

Metallurgy

The advantage(s) of using $${O}_{2}$$ rather than air in the steel industry is (are): $$(I)$$ There is a faster conversion, so a given plant can produce more in day $$(II)$$ Larger quantities can be handled $$(III)$$ It gives a pure product, and the surface is free from nitrides.

Metallurgy

Which of the following process is not associated with steel making?

Metallurgy

The conversion of pig iron to steel frequently requires the addition of: $$(I)$$ oxygen or iron oxide $$(II)$$ transition elements $$(III)$$ inner transition elements $$(IV)$$ silica

Metallurgy

Among pig iron and wrought iron, which is used for making tools? Why?

Metallurgy

The form of iron obtained from blast furnace is:

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